(SQL Server) Create MIME Containing XML

Calls SetBodyFromXml to load XML into the MIME body. Also sets the Content-Type header to "text/xml", and the Content-Transfer-Encoding to an appropriate transfer encoding based on the characters found in the XML.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @mime int
    -- Use "Chilkat_9_5_0.Mime" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Mime', @mime OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Add a few header fields:
    DECLARE @success int
    EXEC sp_OAMethod @mime, 'AddHeaderField', @success OUT, 'Description', 'this is a test'
    EXEC sp_OAMethod @mime, 'AddHeaderField', @success OUT, 'MyId', '123'

    DECLARE @xmlData nvarchar(4000)
    SELECT @xmlData = '<something>123</something>'

    -- Set the mime body via SetBodyFromXml.  This also
    -- has the intended side-effect of adding the Content-Type
    -- and Content-Transfer-Encoding headers.
    EXEC sp_OAMethod @mime, 'SetBodyFromXml', @success OUT, @xmlData

    EXEC sp_OAMethod @mime, 'GetMime', @sTmp0 OUT
    PRINT @sTmp0

    -- The MIME should look like this:

    -- Description: this is a test
    -- MyId: 123
    -- Content-Type: text/xml; 
    -- Content-Transfer-Encoding: 7bit
    -- 
    -- <something>123</something>

    -- Note: The Content-Transfer-Encoding may be changed.
    -- For example, to use "base64", do this:
    EXEC sp_OASetProperty @mime, 'Encoding', 'base64'

    -- Show the MIME again, this time using the base64 
    -- transfer encoding:
    EXEC sp_OAMethod @mime, 'GetMime', @sTmp0 OUT
    PRINT @sTmp0

    -- It should look like this:

    -- Description: this is a test
    -- MyId: 123
    -- Content-Type: text/xml; 
    -- Content-Transfer-Encoding: base64
    -- 
    -- PHNvbWV0aGluZz4xMjM8L3NvbWV0aGluZz4=

    EXEC @hr = sp_OADestroy @mime


END
GO